Bing found the following results
Classic Shell - Start menu and other Windows enhancements
Welcome to Open-Shell | Classic Shell Reborn.
Download Open-Shell (Formerly Classic-Start) - MajorGeeks
GitHub - Open-Shell/Open-Shell-Menu: Classic Shell Reborn.
Classic Shell: Downloads
StartIsBack: real start menu for Windows 8 and Windows 10
Open Shell Download Free - 4.4.191 | TechSpot
Stardock Start8 Download - 1.56 | TechSpot
5 Best Free Start Menu Replacements for Windows 8 - Lifewire
How to add a Start Menu to Windows 8 using Classic Shell - BleepingComputer